We have plans to remove support for displaying notes from debconf, since the vast majority of all debconf notes are inappropriate use of debconf. From what I can see, harden's notes fall into that category, though on the edge between appropriate and inappropriate use.
Work toward this goal so far has consisted of: - Developing NEWS.Debian support, which eliminated 90% of the appropriate use of debconf notes. - Adding support for proper error templates in debconf, for the packages that need to use debconf to warn about an error condition. - Removing support for emailing unseen notes, since it was getting annoying to have all these useless low priority notes[1] cluttering up mailboxes. The current status is that I am aware of one completly legitimate use of debconf notes (the note displayed by nobootloader in d-i on systems that have no bootloader and need manual configuration to boot). This is the only thing blocking complete removal of support for displaying notes from debconf. I expect we will find a solution to that and I'd encourage you to find some way more appropriate to get your information to the user than debconf notes. I suspect there are lots of possibilities you may have not considered. For example, have you ever thought about making harden run as a cron job and send email if it detects a new condition that the user should be warned about, such as the user installing a new server that needs to be hardened. Anyway, please consider debconf notes as something that may stop being displayed at any time. -- see shy jo [1] Getting mailed a note saying "welcome to the configuration of package foo" that you only see when you check the mail later is a classic example of this.
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